Sprue plate for ingot molds



April 7, 1925.v k 1,533,067

. H. MC NELLY SPRUE PLATE FOR INGOT MOLDS j Fledmarch 2e 1924 Patented pr. 7, 1925.

'HARRY MCNELLY, OF CLAY'EONT, BELWARE.

SPRUE PLATE- EOR INGOT MOLDS.

Application filed March 26, 1.324. Serial No. 702,071.

To all whom t may concern.'

Be it known that E, Hanni' Molinenr, a citizen ot' the United States, residing in Claymont, llleiv'Castle County, Delaware,

have invented certain improvements in Sprue Plates for ngot olds, ot which the following is a speciiieation.

My invention relates to certain unproveients in spi-ue plates upoiL which the ingot 1G molds are placed around a sprue through which molten metal is poured, the metal flowing through channels in the plate to the several ingot molds.

llhe object ot' the invention is to construct the sprue plate so as to :torni a deep Well directly under the sprue so that.v when the molten steel is poured, the Well Will quiet the iiow and a steady stream ot metal will flow to the several molds.

En the accompanying drawings:

Fig. l is a plan view of my improved sprue plate, showing the molds and runner located in position, the runner being in section; and

Fig. 2 is a sectional elevation on the line 2 2, Fig. 1.

Referring to the drawings, l is a metal plate of a size sufficient to accommodate a number of ingot molds 2. rlhese molds 2 are open at the bottom and rest on the plate. At the center of the plate is the sprue, or runner, 3. In the present instance, this sprue has a base flange and a tire brick lining l.

ln the plate l are channels 5, which lead from the sprue to the several ingot molds. ln the channels are tubular fire bricks 6, which form passages for the' molten metal. The end brickhas annular passages that 40 communicate With the bottoms of the ingot molds.

Birectly under the sprue 3 is a deep Well which is lined with tire brick. The sev- 'al passages in the bricks 8 of the channels communicate withr this Well, as sho-Wn in Fie'. l. i

lhe depth off the nell must be such that, when the metal is poured, the ebullitions of hemetal, due to the heat and to the poury ing action, are con lined to the center of the Well; the metal at` the edge ot the Well being quiescent; the iiow of the metal over the edge orP the well into the several passages leading to the ingot molds being quiet and Without bubbles, thereby producing ingots superior in quality to those poured in the ordinary manner.

The size of the well Varies according to the size ot' the sprue and the size of lthe passage leading to the ingot molds, but `it must be oi such depth as to quiet the tlow ot the metal being poured.

l claim: y

l. Vihe combination oic a sprue plate for casting ingots, having a deep Well; a. sprue .locatedy above the Well; and ingot molds, the plate having passages connecting lthe molds With the upper portion of the Well, the vvell being so `proportioned that the ebullitions' of the metal due to the pouring and to the heat, areV eonined to the center of the Well, the metal at the edge of the Well iiowing quietly into the passages leading to the molds Without bubbling.

2. The combination of a sp-rue Vplate 'for casting ingots, having a deep Well; a sprue located above the Well, the Well being of greater diameter thantlie sprue; and ingot molds, the passages in the plate communicating with the bottoms of the molds and withY the upper portion of the Well.

HARRY MCNELLY. 

